Delaware Property Tax Exemption for Surviving Spouses: What You Can Keep and What You Must Reapply For

Property tax exemptions do not follow the deed when a spouse dies. That is the fact most Delaware homeowners miss, and it costs them hundreds — sometimes thousands — of dollars in lost savings they were legally entitled to keep.

When your spouse's name comes off a title and yours goes on, or when the property moves through the estate, the county Board of Assessment resets the tax status. Every exemption that was in place — the State Senior School Credit, the county disability or elderly exemption — must be reapplied for by you, in your name, on the new deed. And the deadline for most of these programs is April 30 of the applicable tax year.

The State Senior School Property Tax Credit

Delaware's state-level credit reduces school property taxes by 50%, up to a maximum of $500 per year, for homeowners who are 65 or older. Pending legislation (HB 73) proposes to raise that cap to $1,000 beginning in 2026, though it had not yet been enacted as of mid-2026.

To qualify, you must:

• Be at least 65 years old
• Own and occupy the property as your primary Delaware residence
• Meet the residency requirement

That last point is the trap. Delaware changed the residency requirement in 2018. If you established legal domicile in Delaware on or after January 1, 2018, you must demonstrate ten consecutive years of Delaware residency before you qualify. Under the old rule, it was three years. Recent transplants — retirees who moved to Delaware in the last decade — may not qualify at all, or may need to wait years before their credit kicks in.

If your spouse was the one who met the age and residency requirements, you need to assess your own eligibility now that the property is in your name. A surviving spouse under 65 will not qualify for the state credit regardless of the estate's history with it.

Applications are processed by the Delaware Department of Finance. The deadline is April 30. If you miss it, you lose the credit for that full tax year.

New Castle County: The Most Accessible County Exemption

New Castle County offers both an elderly/disability property tax exemption and a dedicated school tax exemption for seniors, each with different income thresholds.

County property tax exemption: Income limit of $65,000 adjusted gross income — the most generous threshold in the state. This is the figure that matters for most surviving spouses who inherit a mid-size estate or continue receiving pension and Social Security income.

School tax exemption: Income limits of $15,000 for single filers and $19,000 for married filers — significantly more restrictive. A surviving spouse with Social Security plus a modest pension may exceed this threshold.

Applications go to the New Castle County Board of Assessment. The deadline is April 30.

If the property title changes — because you are taking it out of the estate or moving it from joint tenancy into your sole name — file the exemption application as soon as the new deed is recorded. Do not wait for the county to notice the transfer and reapply automatically, because they will not.

Kent County: Restrictive Income Limits

Kent County enforces much tighter income thresholds than New Castle. The elderly and disability exemption applies only if your combined annual income is:

• $18,000 or less for single applicants
• $24,750 or less for married applicants

These figures are not indexed to inflation and have not changed substantially in recent years. A surviving spouse who continues receiving the deceased's pension — even at a reduced survivor rate — may push household income above the Kent County limit. If you are within $2,000–$3,000 of the threshold, it is worth calculating your adjusted gross income carefully before assuming you do not qualify.

Kent County applications are filed with the Kent County Assessment Division. Deadline: April 30.

Sussex County: Strictest Limits, but Social Security Is Excluded

Sussex County's income thresholds are the most restrictive in the state:

• $6,000 or less for single applicants
• $7,500 or less for married applicants

At first glance, these numbers seem to disqualify almost everyone. But Sussex County's calculation excludes Social Security income. For a surviving spouse whose primary income is Social Security plus modest savings interest, the effective qualifying income may be much lower than their gross income suggests.

Sussex County also recently updated its maximum property value threshold to $229,000, following the state's first property reassessment in fifty years — a change that prevented mass disqualification of homeowners whose values had spiked on paper. If the reassessed value of your home is below that threshold, you retain eligibility even if the reassessment increased your property value significantly.

Applications go to the Sussex County Assessment Office. Deadline: April 30.

The 100% Disabled Veteran Exemption: A Separate Program

Surviving spouses of veterans rated 100% permanently and totally disabled by the VA qualify for a full exemption from school property taxes — not a credit, a full exemption — provided:

• The property is the surviving spouse's primary residence
• The surviving spouse has not remarried

This is the most valuable property tax benefit in Delaware for eligible families. It must be applied for through the county Board of Assessment with documentation of the veteran's VA disability rating.

What Happens When the Title Changes

The most common scenario: a home was held in both spouses' names, the county had the elderly exemption in place, and now the property passes solely into the surviving spouse's name through the estate. The Board of Assessment will not automatically transfer the exemption. When the new deed is recorded, the property may go back on the tax rolls at full rate.

You must file a new exemption application — with your own age, income, and residency documentation — promptly after the title changes. If the change happens close to the April 30 deadline, prioritize this filing above other estate administrative tasks.

The Delaware Survivor Benefits Navigator includes county-specific checklists for all three property tax programs, the correct offices to contact in New Castle, Kent, and Sussex, and the full sequence of filings required when a home passes through a spouse's estate. Get the complete guide here.

Practical Checklist

• Confirm whether the previous exemption was in your spouse's name or jointly held
• Calculate your adjusted gross income using the county-specific formula (remember: Sussex excludes Social Security)
• Verify your Delaware residency start date if you moved to Delaware after January 1, 2018
• File all applications before April 30 — there are no grace period extensions
• If a veteran's 100% disability exemption was in place, apply to continue it as surviving spouse
• Check whether the new property value after reassessment is above or below the Sussex County $229,000 threshold

Missing the April 30 deadline does not just cost you this year's savings — it resets the clock on an annual program, meaning you lose the full year's benefit and must reapply again the following spring. Act as soon as the title transfer is complete.

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